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Oleum, California

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Title: Oleum, California  
Author: World Heritage Encyclopedia
Language: English
Subject: Rodeo, California, Oleum, List of places in California (O), Rancho El Pinole
Publisher: World Heritage Encyclopedia

Oleum, California

Coordinates: 38°02′41″N 122°14′54″W / 38.04472°N 122.24833°W / 38.04472; -122.24833

Unincorporated community
Location in California

Coordinates: 38°02′41″N 122°14′54″W / 38.04472°N 122.24833°W / 38.04472; -122.24833

Country United States
State California
County Contra Costa County
Elevation[1] 203 ft (62 m)

Oleum is an unincorporated community in Contra Costa County, California. It is located on the Southern Pacific Railroad 6 miles (10 km) east-southeast of Point Pinole,[2] at an elevation of 203 feet (62 m). An oil refinery is located at Oleum, hence the name from "petroleum".[2]

Oleum is located on the Mexican land grant Rancho El Pinole made to Ygnacio Martinez. A post office operated at Oleum from 1910 to 1951.[2]


  • U.S. Geological Survey Geographic Names Information System: Oleum, California

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